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Masked bannerfish

Heniochus monoceros

  • Fish
  • IUCN: Least concern
  • Usual depth4–24 m
  • Water temperature21–30 °C
  • Best monthsMarch, April, and October
  • How commonOccasional
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About this species

Heniochus monoceros, the masked bannerfish, is a marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is found in the Indo-Pacific area.

Text from the Wikipedia article “Heniochus monoceros”, licensed CC BY-SA 4.0. Read the article

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

  • January: 5 records
  • February: 37 records
  • March: 69 records
  • April: 48 records
  • May: 26 records
  • June: 47 records
  • July: 43 records
  • August: 45 records
  • September: 12 records
  • October: 74 records
  • November: 6 records
  • December: 9 records

Depth and water temperature

Depth

Mostly recorded at 4–24 m · Deepest record: 100 m

  • 0–10 m: 216 records
  • 10–20 m: 141 records
  • 20–30 m: 90 records
  • 30–40 m: 1 records
  • 40–50 m: 1 records
  • 50–60 m: 0 records
  • 60–70 m: 0 records
  • 70–80 m: 0 records
  • 80–90 m: 0 records
  • 90–100 m: 0 records
  • 100–110 m: 1 records

Water temperature

Recorded in surface water of 21–30 °C

  • 20–22 °C: 1 records
  • 22–24 °C: 2 records
  • 24–26 °C: 21 records
  • 26–28 °C: 121 records
  • 28–30 °C: 170 records

Names and classification

English
Masked bannerfish, Bannerfish, horned coachman, masked bannerfish, Masked Bannerfish, Masked Coachman, Pennant Coralfish, Unicorn Pennant Coralfish
Names in 3 more languages
French
Cocher, Cocher masque, Hénioche cornu, Pavillon, Poisson cocher masqué, Taurillon du pauvre
Japanese
Oni-hatatatedai, Onihatatatedai, オニハタタテダイ
Simplified Chinese
單角馬夫魚, 烏面立旗鯛, 黑面關刀

Other scientific names: Heniochus monoceras, Taurichthys monoceros

Similar species

Sources and credits

Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).

  • Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
  • Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
  • Conservation status as published by GBIF (IUCN Red List).
  • 1,142 open-data records from 1929 to 2022.

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